CHARLES W. HOOKER. 65 



Location of specimens. — British Museum, two 9 cotypes. 

 U. S, National Museum, from Santo Domingo and Mexico. 

 American Entomological Society (Philadelphia), 9 , Mexico. 



Enicospilus nigricauda Tasch. 

 Ophion nigricauda Taschenberg, Zeitschr. £. d. Ges. Natur., 



46, p. 437, n. 27, 9 1875. 



Dalla Torre, Cat. Hym., Ill, p. 196 1901. 



Henicospilus nigricauda Szepligeti, Gen. Ins., Hym., 34'ne Fasc, 



p. 27, n. 63 1905. 



Testaceous, vertex flavous, apex of abdomen black, wings hyaline, 

 veins fuscous, discocubital cell with one macula. 



Length, 18-20 mm. 



Sericeous to testaceous, vertex and occiput sulphur-yellow ; ocelli 

 large, filling the space between the tops of the eyes completely. 



Scutellum and spots on the pleurae sulphur-yellow ; metanotum with 

 an anterior transverse carina and lateral longitudinal ridges ; with fine 

 irregular transverse ridges behind the shell-yellow ground color of the 

 scutellum and mesopleurae, often somewhat lighter. Wings hyaline, 

 with one macula in the discocubital cell ; nervures shining fuscous. 



Abdomen black from the fifth or tip of the fourth segment to the 

 apex. 



I have not seen specimens of this species, and can only 

 give a free translation of Taschenberg's description. 



Cotypes. — Three 9 's, location unknown to me. 



This species resembles E. flavus, but the latter has the 

 vertex black and the apex of the abdomen at the most only 

 fuscous. 



Distribution. — Brazil ; Venezuela. 



Enicospilus thoracicus (Cress.). 

 Plate III, fig. 22. 

 Ophion thoracicus Cre&son, Proc. Ent. Soc. Phila., IV, p. 55, 9, 



Cuba 1865. 



" " " Proc. Acad. Nat. Sci. Phila., p. 374, n. 



2, Cordova 1873. 



" trimaculatus Taschenberg, Zeitschr. f. d Ges. Natur., 46, 



p.433, n. 18, 9 1875. 



" {Enicospilus) thoracicus Cameron, Biol. Centr. Amer., 



Hym., I, p. 291, n. 3, Mexico, 



Cuba 1886. 



" thoracicus Fox, Trans. Amer. Ent. Soc, 18, p. 337, 



Jamaica 1891. 



TRANS. AM. BNT. SOC, XXX VHI. (9) 



